Road drag



March 26, 1929.. A.I B. COFFIN ET A1. 1,706,914

ROAD DRAG Filed June 9,"1928 v 5 sheets-sheet 2 mvENT/s, l Arfhurcoffjn114 John C Haakatt,

March 26, 1929.

Filed June 9, 1928 A. B. COFFIN ET AL ROAD DRAG I 6' 74 5J .75 7J 5x. o.i9 l bb' s 5.2

so K 4l 42 5l Il 44- e Q' llV as l1 l l l/ ll l` l` lll'" l a2. (a5 l0f8 67 a e7 mvE'NToRs, Arth rato/ft., qu John C, Huskeu;

` 5 Sheets-5heet 5 Patented Mar. 26, 1929.

ARTHUR n. corrm Ann Jonnc. trasmitir, or srrcnLnNn, INDIANA.

nenn nene.

Application filed .Tune 9,

This invention relates to'road drags of the type particularly adaptedfor `the maintev nance et a road, and has for primary purpose theprovision of means for `dragging 5 that may be .quickly attached anddetached to and from an ordinary truck, that may be quickly raised andlowered inrelation to the road to permit turning` aro-und of the .truckin a limited area andto permit crossingi of:

l a railroad without having to stop the truck, that may be variablyadjusted to cut and drag' the road to meet .the surface' conditions ot'the road as the trnck moves along, all of such adjustments being madebythe truck driver Without his having to leave his seat, that is notaiiected by the vertical rise and iall of the front wheels of the truck,and that will permit the shaving oif of the high spots in the road andeii'ectually carry the loosened gravel back and torth over theroadwayseveral times to be linally levelled .down without causing` the truckwheels to travel atsany time on the loosened or spread gravel.

The invention is lierebeloiv described in one particular iorin as shownby the accomw panying drawings, in which-#1 y Fig. 1 is a side4elevation of a dragembody ingr our invention as applied to a truck;

Fig. 2, a top plan view of thetruck with the drag; Y i i Fig. 3, a rear`elevation of thetruel and drag; i

Fig. 4, a top plan view ot' the Vdrag.;` only;

Fig. 5, a longitudinal vertical section on the line 5-5 in Fig. 4 on anenlarged scale; and Y Fig. 6, a longitudinal vertical sectionon the lineG-G in Fig. 4. i Y

Like characters of reference indicate like parts throughout the severalviews in the drawings. i

The drag is preferably made with two spaced apart I beams and 11 as siderails, to the under side of which are riveted a` plurality of channelmembers 12, 13, 14, 15, 1G,

CII

17, 13 and 19, to have the members 12, 1 3,

14, and 15 transversely,spaced apart near' the forward end of the beams10` and 11 and the members 16, 17, 1.8, Vand 1-9 spaced apart near therear end, Figs. 1 and 4, whereby 'there is `an appreciable'space betweenthe inem-hers l5 and 1G.

192s. serial No. 284,036.

To 4the underside of the members 12 and 13 are riveted the angles 20 and21, each set to `extend obliquely from the outer forward corner Voftherectangular frame formed by the beams and channels rearwardly andinwardl)7 toward the longitudinal .center line `with an appreciablespace left between the rear ends. Cutter bars 22 and 23 are bolted tothe `forward vertical faces oit' the angles and `21 respectively. i

'llheang'les 24 andQ are riveted to the under sides ofthe channelmembers 14 and 15, tol have their forward ends meet on the centerlineand to `extend obliquely therefrom. outwardly and rearwardly, Fig.4, to form a V `as viewed from the front end, the apex of thatl comingsubstantially on the line between the rear ends of the two angles 2O and21. Cutter 'bars 26 and 27 are bolted to the forward vertical `faces ofthe angles 24 and 25.

AThe angles 28 and 29 are riveted to the under sides of the channelmembers 16 and 17 to `have their forward ends positioned under the sidebeams 10 and 11 and to extend obliquely tllere'from inwardly andrearwardly toward Vthe center line with an appreciable space betweenthe" rear ends, and cutter bars 30 and 31 are bolted to the f liorwardvertical sides of the angles.

A long cutter bar 32 is obli quely positioned on the aiiiggle 33 riveted`to the rear channels 18A and 19 to lie behind the ends of the bars 3()and 31, to extend from a pointjust inside the beam 11 rearwardly andacross to extend beyond the beam 10 'for a short length.

Bridge plates 34 and 35 are riveted to the top sides of the channels 12and 153 (Figs. 4 and `5) spaced apart the width oi the tread ci theusual truck 36, and between the chain nelsl 1.3 and 14, the plates 37and 38 are .fitted to `be moved slidingly therebetween, while the plates39 and 40 are riveted to the ,channels 14 and 1 5 in line with theplates 34 and `The truck 36 is backed up to and over the front end oithe drag1 to have the wheels 41 and'42 roll over the plates 34, 37, and39 and 35, 38 and 4() respectively and down again onto the groundbetween the channels `15 and 16, there being clearance around the wheelsl sideways between the beams 1.0 and 11 and Y fore and aft betweenthechannels and 16.

From the brackets 43 and 44 secured to the beams between the channels 15and 16, extend ,the chains 45and 46, whiclrmay be adjustably 'enga-gedoverthe hooks 47 attached A, to theV truck frame-48 to position the dragi and engaged thereon.

`the chains are of unequal length, and the give a straight or angularlift as desire.

properly in relation to the rearvwheels 41 and 42,1itbeing noted, Fig.2, that the chains jare carried obliquely inwardly and forwardly Vto thetruck frame. The drag is thus hooked end but from ynear its center sothat the drag may bef-free to rock forev anda-ft as it is pulled. l l

A shaft 49 is rotatably Amounted between and under the beams 10 and 11topass between the channels 13v and. 14, and chains 50 and 51 fareattachedby their ends to the shaft 49 so that rotationY of the shaft` will wrapthe lchains therearound. The chain 50 is secured to the shaft 49 justinside the beam 11 while the chain 51is secured to they shaft 49 nearthe other end just inside the beam 10. Hooks 52 are attached to thesides' ofthe body 53 of thetruck 36 and the ehains50 and 51'arebroughttup vertically It is obvious that if shaft49 is'revolv'ed,oneside of the drag may be lifted before the other, and the chains V50and 51 may therefore be adjustably engaged on the hooks' 52 as to lengthto The shaft 49 carries a gear wheel 54 on its outer end outside of thebeam-10, the angle plate55.being securedto the beam. 10 and carryingVthe shaft 49tli1erethrough near its bottom. Between the plate and thegear v54is a plate 56 -rockably carried fon the shaft v49`onthe' upperend ofwhich is Y formeda wormhousing'57 inwhich is carried the worm 58in mesh with the gear 54.

n A shaft 59 extends fromthe worm 58 forwardly and upwardly to near'thetop end of the 'standard 60 carried vertically on, the

beam 10, where the shaft 59 is'rotatably supported through the bracket61 anda cra-nk .62 is fixed onv the end of the shaft 59 as a Ameans ofrevolvingV the worm 58 to .revolve-in turn the shaft 49 to raise orlower j vtheir lower ends to the transverse shaft 66 rotatably supportedbetween the side beams 10y andy 1 1 and further stilfened by the inter-Ymediatebrackets 67 These rear chains 63 and 64 Yare preferably carriedat anV angle from thevertical, as in Fig. 3 to counteract -any ltendencyof sidesway of the drag.

A'gear wheel 68 is fixed `to the outer end oftheA shaft 66-and a worm 69isr carried on the plate 70 in mesh with the Wheel 68, the

plate 70 being rockably carried on the shaft 66 and fixed in position by the bolt 71 as in the case of the front worm carrier. A stub shaft 72extends from the worm 69 and a tubular shaft 73 telescopes thercover andis fixed thereto and extends forwardly and upwardly to the top of thestandard 6i.) through the bracket 74 and carries the crank 75 on theend.

The standard 6() may be adjuslably positioned along the bealn 10 inaceordam'e with the location of the cab on the particular truck beingemployed t-o operate the drag, and to accommodate the shafts 59 and 73to the various positions, the forward shaft 59 may be rockedsutlieiently by rocking the plate 56 to give the required shaft angle,while the shaft 73 need not be changed as to angle of slope but may belengthened by slipping the shaft 73 farther out on the stub shaft 72 andthere secured. The standard 6() is so located that the driver of thetruck may extend his arm from the truck conveniently and turn either orboth cranks 62 and 75 as may be required.

' As the drag is pulled over the road, gravel is loosened by the twofront cutter bars 22 and 23 and carried inwardly to be discharged to therear where the oppositely slanted bars 26 and 27 carry the gra-vel backoutwardly equally to each side of the drag where the gravel is depositedjust outside of the wheel Y tracks, and then the bars 30 and 31 collectthe gravel so deposited and carry it bark across to the center of thedrag to deposit to the rear where the bar 32 spreads it back evenly overthe roadway and lets the coarselmaterial be deflected to be deposited ina line olf theend of the bar extended beyond the side of the beam 10. l

The weight of the drag runs over a ton and it thereby hangs snugly tothe roadway without bouncing upwardly when projecting bumps or rocks areencountered. The crank 62 may be turned to lift or lower the front endof the drag, and the crank 75 similarly controls the elevation of therear end, so that by watching the roadway, the drag may be suitablyrocked or raised to meet the varying road conditions as encoun tered.

4.When the truck has reached the end of the road, the cranks 62 and 75may be quickly turned to lift the drag clear of the road and the truckmay turn around as usual and return home where rthe drag may be loweredto the ground, all of the chains unhooked from the truck, and the truckthen driven forwardly clear of the drag.

The plates 37 and 38 are slidingly carried between the channels 13 and14, so that as the chains 50 and 51 are wound about the shaft 49 andthechains thereby move longitudinally of the shaft and contact the plates37 and 38, the plates are carried sideways lll() llll Cil

ilo/06,914

by the chains "to be out of the way when the (li-iig;` i s being;raise-fl or lowered.

lVhile we have hereshown and described our invention in one particularforni., it .is obvious thai many structural changes may be .madewiiihout departing' from the spirit` of the invenion, and We, thereforedo noi4 desire lo be .limited to the said precise form, nor any morethan may be required by the following claims.

We claim:

l. Tn a road drag, a frame; oublier bars carried by the frame; atransverse rotatable shaft at the front of the frame; a frai'isvereeroialable shaft near the rear of AAdie frame; chains secured io saidshafts, one near each end of each shaft; and means for revolving saidshafts.

2. in av road drag, a frame; cortei bars carried by the frame; atransverse rotatable shaft ai; the front of the frame; a iiranF-svcrserofalnble shaft near the rear of the frame; chains eeci'lrcd to seinShafts, one near each end of each shaft; and means for revolving saidshafts; said cutter bars being in two groups, one at the ii rward endand one at the rear end of the drag with an appreciable spacetherebe'liween; and hitch means se- 'nred to said frai'ne between said*awo sha; s.

ln a road drago frame; cutter bars carried by the frame; a transverserol'atable shaft at the frontA of lfhe frame; a transverse roafableshaft near the rear of Jche frame; chains secured to said shafts, onenear each end of each ehaff; and means for revolving said shaftscomprising a set of gearing; on each :shaft and cranks operating laidgearing mounted to one side and above said frame. i

l. in a road drag, a frame; cutter bars carried by the frame; atransverse rotatable shafty at rbc 'li'ronl` of "che frame; a transverserotatable shaft near the rear of the frame; chains secured lo saidshafts, one near cach end of cach shaft; and means for revolving saidshafts comprising a sel` of gearing on cach shaft and cranksoperatingsaid gearing;` mounted to one side and above said frame; andmeans for adjustably positioning said cranks longitudinally of theframe.

5. ln a ccmbinaiion with a truck, a road drag` frame adapted to receivee pair of wheels of the trliclc therebetween;

'leans carried by the fram-e to permit the wheels to roll inio Iand outof the frame; a frontA see of cuteer bars adapted fo move loosenedgravel inwardly and then oijllward ly ce each side of fhe pair ofwheels; a of rear cutlerrbars back of Said wheels adapfed izo colleensaid gravel freinthe oni'` side of the wheels and direct it baci: te thecenter of the freine; a, spreader bar back of said rear cutter bars; andhitch means from said truck attached to said frame between said frontand rear cutter bars.

G. In a combination with a truck?, a road drap; frame acapicd to receivea pair of wheels of l'he Vtruclr fliercbetween; brirgre nieene carrie-dby fhe frame lo permit flic wheels lo 'roll info and out of ehe frame; afreni', set of entier bers adapted to move looft-cned grave inwardly andthen oui/ward ly .lio cach side of the pair of wheels; a set of rearcutter Vbars bach of said wheels` adapted ro collect` said gravel fromthe outside of Jdie wheels and direct ii;- back to ighe cenl'er of libeframe; a spreader bar back of said rear eolici.' bars; and hitch meansfrom si il truck ailiached fo said frame between said freniA and rearcollier bars; rolalable shafis carried by the frame; chains secured iosaid shafts and removably liooled fo said truck; `and .means forrevolving said shafts from the drivcrs seat of the fruclr.

7. ln combination with a truck having a drivc1"s scart and a pair ofwheels, a road drag' frame adapted to be carried around said wheels;entre bars carried under the frame adaped to cui; and move diri; backand forlih under the frame whereby said wheels do not roll over saiddirt and Jdie dir; is levelled behind the wheels; bridge meanspermitting said wheels to be rolled over and info Said frame; a forwardcransverse shaft carried by the frame in front of the wheels; a reartransverse shaft carried by ihe frame io Jche rear of Jche wheels;chains leecured ro lle forward sha-fiand extended normally veriicallytherefrom7 one lo cach side of ehe truck to be adjustably attachedthereto; chains secured to the rear shaft cnt-ended normally obliquely,one loward each side of the izrucl( and. adjiisfably ati-ached thereto;gear means on each of said shafts; a etainlard carried by the frame es;ltending to one .side of the drivcrls seat; shafts carried frein saidzgear means lo said standard; and cranlcs on said sha-fis forrevolving,v said ,shafts to selectively raise and lower said fran oabout said wheels.

8. In combination with a truck having' a driver s seat and a pair ofwheels, a road drag frame ada-pled to be carried around said wheels;cutter bars carried under the frame adapted to cui` and move dirt baclrand forth under the frame whereby said wheels do no roll over said dirt`and the dirt is levelled behind ihe wheels; bridge means pei-millingSaid wheels to be rolled over and .info said frame; a forward transverseshaft carried by the frame in from: of 'ghe wheels; a rear transverseeliaffJ carried by the frame co lhe rear of Vthe wheels; chains securedto the forward shaft and extended norn'ially vertically therefroni, oneto each side of the truck to be adjustably atiache'd thereto; chainssecured to the rear shaft extended normally obliquely, one toward eachside of the truck and adjustably attached thereto; gear means on each ofsaid shafts; LL standard carried by the frame extending to konesde ofthe drvers seat; shafts carried from said gear means t0 said standard;and cranks on said shafts for re- 5 volvng said shaftsto selectivelyraise and -l'ower said frame about .said Wheels; `and drawing meanshtchngsadframe to said truck, said means being attached te Suid framebetween Sard transverse shafts.

In testnncny whereof we nix our elgnn- 10 ture.

ARTHUR B. COFF 1N. JOHN C. HASKETT.

